Rollup merge of #82033 - magurotuna:issue82016, r=jyn514

Refactor `get_word_attr` to return only `Option`

This commit removes `bool` from the return type of `NestedAttributesExt::get_word_attr` so it will return only `Option<ast::NestedMetaItem>` for less redundancy.

Closes #82016

r? `@jyn514`

diff --cc src/librustdoc/clean/mod.rs
Simple merge

diff --cc src/librustdoc/clean/types.rs
Simple merge